40. A force } = (101 - 8j +6k)n is acting on a body and the body moves with a velocity of 5 = 2î - 23 -
m/s. Find the power of the force.
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Answer:
f_7i+6kn. v_3j 4k m/s
Explanation:
power p _force×velocity. p _f. v. _ (7i+6k) ,(3j _ 4k) = 24watts.
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